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经营范围
发明名称
Matériau et objets composés de liants hydrauliques et de substances fibreuses
摘要
申请公布号
FR830030(A)
申请公布日期
1938.07.19
申请号
FRD830030
申请日期
1937.10.07
申请人
发明人
FRANK ERNST
分类号
C04B28/02
主分类号
C04B28/02
代理机构
代理人
主权项
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